牛津8B Unit4 A charity show Language points练习题及答案
一、适当的介词、副词填空。
1. I am sorry that I didn’t write____ you earlier.
2. They were helping ____ the rice harvest on the farm.
3. They worked very hard to raise money____ Project Green Hope.
4. They were late for the meeting because ____ the bad weather.
5. He was working ____ the maths problem when the light went out.
6. Rice must be harvested ____ the right time.
|